YCM
ACMR icon

Yiheng Capital Management’s ACM Research ACMR Stock Holding History

Yiheng Capital Management’s Portfolio ACMR Stock Details ACMR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-174,447
Closed -$6.88M – 25
2025
Q4 		$6.88M Sell
174,447
-105,754
-38% -$3.94M 1.39% 12
2025
Q3 		$11M Hold
280,201
– – 1.62% 12
2025
Q2 		$7.26M Hold
280,201
– – 0.65% 14
2025
Q1 		$6.54M Sell
280,201
-400,403
-59% -$9.14M 0.61% 14
2024
Q4 		$10.3M Buy
680,604
+14,300
+2% +$258K 0.4% 17
2024
Q3 		$13.5M Buy
666,304
+220,200
+49% +$4.22M 0.69% 14
2024
Q2 		$10.3M Sell
446,104
-35,187
-7% -$890K 0.83% 18
2024
Q1 		$14M Sell
481,291
-31,409
-6% -$719K 0.78% 16
2023
Q4 		$10M Hold
512,700
– – 0.58% 18
2023
Q3 		$9.28M Hold
512,700
– – 0.47% 26
2023
Q2 		$6.71M Buy
512,700
+210,400
+70% +$2.22M 0.36% 23
2023
Q1 		$3.54M Hold
302,300
– – 0.14% 29
2022
Q4 		$2.33M Hold
302,300
– – 0.1% 27
2022
Q3 		$3.77M Sell
302,300
-4,964,500
-94% -$80.7M 0.23% 27
2022
Q2 		$88.6M Buy
5,266,800
+964,800
+22% +$14.9M 5.07% 7
2022
Q1 		$89M Buy
4,302,000
+56,700
+1% +$1.43M 4.06% 7
2021
Q4 		$121M Buy
4,245,300
+1,712,700
+68% +$54.1M 6.16% 6
2021
Q3 		$92.9M Hold
2,532,600
– – 4.57% 8
2021
Q2 		$86.3M Buy
+2,532,600
New +$69.6M 3.47% 10
2021
Q1 		– Sell
-124,434
Closed -$3.37M – 27
2020
Q4 		$3.37M Hold
124,434
– – 0.16% 21
2020
Q3 		$2.87M Hold
124,434
– – 0.17% 20
2020
Q2 		$2.59M Hold
124,434
– – 0.13% 23
2020
Q1 		$1.23M Buy
+124,434
New +$1.34M 0.1% 24

Other funds holding ACMR

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
WCM Investment Management
WCM Investment Management Laguna Beach, California $55.2B AUM 57.07% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London $209B AUM 37.72% 1-Year Est. Return
VARA
Value Aligned Research Advisors Princeton, New Jersey $40.1B AUM 376.19% 1-Year Est. Return
PCP
Polunin Capital Partners London, United Kingdom $407M AUM 55.12% 1-Year Est. Return

Yiheng Capital Management's ACMR Position: Q1 2026 in Review

Yiheng Capital Management sold out of ACM Research (ACMR) in Q1 2026, closing a stake of 174,447 shares — an estimated $6.88M sold.

Yiheng Capital Management first reported a position in ACMR in Q1 2020 and held it in 23 quarters. The position peaked at $121M in Q4 2021. 300 funds tracked by Wall St. Rank hold ACMR as of Q1 2026.

  • Yiheng Capital Management reported no remaining ACM Research position as of Q1 2026 after selling out during the quarter.
  • Yiheng Capital Management sold 174,447 ACM Research shares in Q1 2026, an estimated $6.88M.
  • Yiheng Capital Management first reported a position in ACM Research in Q1 2020 and held it in 23 quarters.
  • Yiheng Capital Management's ACM Research position peaked at $121M in Q4 2021.
  • 300 funds tracked by Wall St. Rank held ACM Research as of Q1 2026.

Based on Yiheng Capital Management's 13F filing for Q1 2026, filed 15 May 2026.